Wang Kei Ma

10 Questions 12 Answers 0 Followers

Questions related from Wang Kei Ma

About the overshoot of a control system?

I have designed a control system for a based on the paddle displacement and I have been asked whether the controller would cause overshoot of force. I'm not sure whether it is possible to get the...

12 October 2019 5,024 3 View

About internal dose assessment in nuclear medicine ?

I'm doing some dosimetry research on the MIGB-I123, MIGB-I131 and 68 Ga-DOTANOC using Internal Dose Computer Program called IDAC but this software doesn't has the preadult phantoms therefore I...

20 February 2018 4,377 10 View

Questions about radiation dose to patients from radiopharmaceuticals?

I would like to compare the absorbed doses and cancer risk between MIBG I-131 and MIBG I-123 but the problem is that dose data for MIBG I-131 are compiled from ICRP Publication 53 which are based...

30 April 2017 3,347 3 View

About the deconvolution in renography?

I'm doing some research on renogram background substraction and I would use deconvolution approach. I was wondering how to develop an Aladdin program that runs on GE Xeleris computers for the...

08 October 2016 9,130 0 View

Where can I find pediatric body CT protocols for Toshiba Prime?

Where can I find pediatric body CT protocols for Toshiba Prime? I managed to find the CT head protocols for pediatric in AAPM website but there is no body protocols.....

19 August 2016 670 2 View

Microprocessor to implement PID and fuzzy control?

What microprocessor should I choose if I want to implement PID or fuzzy control? Arduino? Raspberry Pi? Any suggestions?

17 August 2016 9,839 7 View

About Geant4 anthropomorphic phantom?

I'm planning to use Geant4 to calculate the effective dose for mammography examination but I faced two problems: 1. I was trying to use the human phantom in advance example but some of the organs...

16 August 2016 3,829 4 View

How to speed up the response of the fuzzy logic controller?

I tried to use a fuzzy logic controller to replace the PID contoller for the breast compression system. The response of the fuzzy controller is just too slow compared with my original PID...

07 August 2016 3,932 16 View

Estimate EOS imaging system radiation doses using PCXMC?

As EOS low dose X-ray system use bi-plane slot scanning methodology compared with general X-ray system. I was wondering is it possible to estimate EOS system radiation doses using PCXMC? How...

15 January 2016 7,418 0 View

When calculate the life attributable risk (LAR) which one should I use organ doses (mGy) or equivalent dose (mSv) ?

BEIR VII, cancer risk, LAR

09 January 2016 5,199 4 View