美国CAPINTEC.INC CRC系列活度计又称同位素活度测量仪，有CRC-15R、CRC-15BT、CRC-15PET等多种型号。
1、CRC-15R是通用同位素测量仪器，多用于医院核医学科等；
2、CRC-15BT是种子源专用测量仪器，多用于种子源生产单位；
3、CRC-15PET是PET专用仪器，用于测量PET常用同位素；
其中CRC-15R活度计是核医学专用的智能化精密计量仪器，其性能和功能均达到国际先进水平，是世界上性价比最多的产品,用户已遍及世界各地,国内用户已上千家;本仪器由探头和主机组成，量积自动转换、自动测量，本底自动跟踪扣除, 性能十分稳定,深受用户好评。
CRC-15R功能特点：
1、电离室密封可靠,不存在泄漏弊端,亦不受环境影响,长期稳定性好;
2、智能化程度高,测量单位自动/手动转换,能与计算机连接, 自动打印输出;
3、操作简单,使用方便;
4、可测Tc-99m,I-131,Ti-201,I-125等几十种核医学常用核素；
5、可测Sm-153,Y-90,Re-188等体内治疗生物“导弹”药物；
6、分辨率0.01μCi,直接可测量80种核素,通过刻度可测量200种核素；
7、量程范围：0.01μCi-8Ci(Tc-99m)；
8、测量精度：1-2%±1%；
9、测量速度：3-5S（约定真值的95%读数）;
10、能量响应:γ射线:25Kev-3Mev,β射线›200 Kev;
11、本底水平:锝-99‹37KBq;
12、重复性误差:≤±0.5%
CRC-25R活度计
CRC-25R活度计作为CRC-15R的升级产品，继承了以往的风格，稳重，便捷，测量速度迅速。使用了最先进的集成电路技术及屏蔽的电离室，为您提供了高速、精确和其它一些测量活度水平及预备剂量所需要的功能。
它操作简便、设有八个预置常用的及五个用户自定义的核素键，这五个键可任意随时定义内存中的核素，只需按一个键便可完成测量，使您更加轻松和便利。
仪器可输入多达80个核素。并可将它们的半衰期储存在内存中。只需输入核素的CAL数，就可直接访问多达200个可选核素。
技术指标及性能：
1. USB和RS232接口；
2. SD 闪存卡软件升级；
3. 可接USB打印机接口；
4. Mo-99 洗提, Tc-99m, Tc-99m/Mo-99 比率；
5.响应时间：（高活度样品）2秒以内；（非常低活度样品）4-6秒以内；
6.静电计精度：优于2%；
7.系统线性：2%以内；
8.分辨率：0.001MBq；
9.测量范围：最大活度可测8Ci；
10.大液晶显示核素名称、活度；
11.自动调零；
12.具有测定所用所有同位素及其其他低能各种同位素。
配置：
读出器一台、电离室一台、保护套桶一个。
The New Measure for Dose Calibrators in
Today's Nuclear Medicine Environment
The new Capintec CRC-25R Dose Calibrator gives you the state-ofthe-
art technology you've always expected from Capintec, plus many
outstanding new features in one small package. The CRC-25R is
designed to meet the demands of your Nuclear Medicine Department
with accuracy and ease of operation unlike ever before. With added
features including USB/PC Communications and printer capability, a
SD flash card software upgrade, a chamber plug-and-play feature
and expanded remote capabilities, the CRC-25R will continue to
prove to be an asset to your workplace.
The space efficient design of the CRC-25R allows for a large, easy-to-read
display that indicates Nuclide Name, Number, Activity, Unit of Measure and
Calibration Number. A sophisticated microchip platform eliminates analog
controls, while boosting speed of activity measurements.
All nuclide data is entered via the custom keyboard, that includes 8
preset and five user-definable keys. In addition, the user can enter in
over 80 nuclides by using the Nuclide symbol such as Co for cobalt
and 60 for Co 60. Calibration numbers for over 200 radionuclides are
easily accessed by use of the Cal key.
Other capabilities include storage of five reference sources in memory
that are automatically decay corrected for today's time and date.
Dose calibration quality control tests and self-diagnostics are built-in
along with automatic zero and background subtraction making the
CRC-25R extremely easy to use. An optional printer enables the
CRC-25R to print full size records and patient tickets with peel off
labels for vial and syringe identification.
Innovative designs, proven performance and the most comprehensive
technical system available is what you would
expect from the leader in dose calibrator design
and development! For the premium service,
Count on Capintec for our long-standing commitment
to customer satisfaction and support
USB/PC Communications
SD flash card software upgrade
USB printer capability
Chamber plug-and-play capability
Remote that communicates over a high-speed serial interface, and plugs
into the chamber
Both remote and chamber can be placed 100 feet from the readout unit
Selection of Nuclide and Daily Test can be done with the remote
On screen display of Nuclide Name, Number, Activity, Unit of Measure
and Calibration Number
Large character, high visibility display with automatic backlighting
Over 80 Nuclides with half-lives in memory
Automatic zero and background subtraction
Built-in dose calibration, quality control and self diagnostics
Includes a pre-set key for F-18 measurements
Compatible with Nuclear Medicine Management Systems
Optional printer for full size NRC records and patient labels for syringes
and vials.
Optional remote display indicating Nuclide, Activity and Unit of Measure
Console Dimensions
Height: 13.7cm (5.38in)
Width: 26.0cm (10.25in)
Depth: 26.7cm (10.5in)
Weight: 1.8kg (3.9lb)
Chamber Dimensions
Height: 43.8cm (17.25in)
Diameter: 17.2cm (6.76in)
Weight: 13.6kg (30lb)
Well Diameter: 6.1cm (2.4in)
Well Depth: 25.4cm (10.0in)
Cable Length1: 3.7m (12ft)
Ionization Chamber
Type: Thin wall, deep well, high pressure
Dimensions: 26 cm (10") deep x 6 cm (2.4") dia.
Cabling: 3.7m (12') interconnecting cable
Measurement Range
Type: Auto Ranging
Activity: 250 GBq (6 Ci), max.
Resolution: .001 MBq (.01 μCi), max.
Display Screen
Type: Dot Matrix Liquid Crystal Display
Format: Direct reading in Bq or Ci
Bq/Ci Reading: User selectable or fixed
Values Displayed: Nuclide name (Atomic symbol, Mass number),
calibration number
Electrometer
Accuracy: Better than ± 2%
Linearity: Within ± 2%
Response Time: Within 2 sec., 4 to 16 sec. for very low activity
samples (user selectable average period)
Repeatability of Measurement
Repeatability: Within ± 1% within 24 hours, during which time
the calibrator is on all the time.
Tests
Diagnostics: Full test of program, system memories
Quarterly: Daily, Accuracy and Linearity
Daily: Auto Zero, Auto Background Adjust, Data Check,
Accuracy and Constancy
Nuclear Data
Nuclear Setting Keys: 8 Pre-set, 5 User
Calibration Key: Over 200 nuclides
System Memory: Over 80 nuclides (w/cal number and half-life)
A pre-set key measures up to 2.0 Ci (74.0 GBq) of F-18
Standard Source Data
System Memory: Co-57, Co-60, Ba-133, Cs-137 Standard
Sources
Molybdenum-99 Assay
Methods: Canisters of CAPMAC
Measured Values: Mo-99 elution, Tc-99m, Tc-99m/Mo-99 Ratio
PC Port
Interface: Rs-232C Protocol & USB
Compatibility: Standard Nuclear Medicine Management
Systems
Printer (Optional)
Type: Epson Roll, Epson Slip or Okidata full size dot matrix
Printing Options: Full size test reports. Measured results on
tickets.
Power Requirements
100-240 VAC (50/60Hz) 90 MA